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Matt Corallo

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335 commits1 monitored projects44 candidates0 high-risk analyses
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rust-lightningLightning Dev Kit335 commits44 candidates0 high risk
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Informational 17 AI analysisMessage 73 · Adequate
LDK Lightning Dev Kitrust-lightning BitcoinCryptographic librariesLightning Network

Unify and simplify the application of simple chacha20 passes

This commit is a code cleanup: it moves repeated ChaCha20 encryption calls into a single helper function without changing the underlying math or behavior. There is no indication it fixes a security bug or introduces a new vulnerability.

Refactor only: identical ChaCha20 construction moved to helperNo change to key, nonce, or counter derivationNo new unwraps introduced; existing unwraps consolidated
4fac0fe1by Matt Corallo+23−583 files
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Moderate 53 AI analysisMessage 90 · Strong
LDK Lightning Dev Kitrust-lightning BitcoinCryptographic librariesLightning Network

Use `saturating_mul` when multiplying feerates by the fee spike buf

This patch fixes a potential integer overflow when calculating Lightning channel fees. If a malicious or misconfigured peer set an extremely high transaction fee rate, the software could overflow a 32-bit integer while applying a safety bu…

Integer overflow in fee calculationUse of saturating_mul to prevent u32 wraparound/panicRemotely reachable input (peer-provided feerate) drives the overflow
b98d7b8aby Matt Corallo+7−52 files
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Low 43 AI analysisMessage 95 · Strong
LDK Lightning Dev Kitrust-lightning BitcoinCryptographic librariesLightning Network

Correct blinded path forwarding CLTV expiry check

This commit fixes a bug in how Lightning Dev Kit checks expiry times for payments sent through 'blinded paths' (a privacy feature that hides the final recipient). The code was accidentally checking the outgoing expiry time instead of the i…

CLTV expiry check using wrong variable (outgoing vs inbound)Blinded path privacy/cost-protection bypassTest updated to reflect intended introduction-node rejection behavior
8d8313deby Matt Corallo+14−152 files
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Informational 19 AI analysisMessage 78 · Adequate
LDK Lightning Dev Kitrust-lightning BitcoinCryptographic librariesLightning Network

Add an `ExpandedKey` key for phantom blinded path authentication

This commit adds a seventh cryptographic key to an existing key-expansion routine. The new key is intended for a future feature where multiple nodes can share a 'phantom' blinded payment path. The change itself only extends the HKDF output…

Cryptographic key material expansion changed (HKDF output count increased from 6 to 7)New secret key field added to `ExpandedKey` structNo security relevance disclosed by the vendor in commit message or diff
14a47405by Matt Corallo+18−72 files
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Informational 15 AI analysisMessage 73 · Adequate
LDK Lightning Dev Kitrust-lightning BitcoinCryptographic librariesLightning Network

Import `ChannelTransactionParameters` from its real path

This commit is a pure code cleanup: it changes where one internal type, ChannelTransactionParameters, is imported from. There is no functional change, no bug fix, and no security relevance visible in the diff or commit message.

b07111e3by Matt Corallo+3−21 file
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Moderate 60 AI analysisMessage 90 · Strong
LDK Lightning Dev Kitrust-lightning BitcoinCryptographic librariesLightning Network

Properly handle funding key rotation during splices

This commit fixes a bug in how the Lightning Dev Kit (LDK) handles key rotation when splicing a channel. Splicing is a way to resize a Lightning channel on-chain. The protocol only allows changing the 'funding key' during a splice, but LDK…

Protocol violation: non-funding keys rotated during splicePotential commitment signature mismatch after spliceAPI ambiguity allowed signer to return incompatible key set
e95ebf8bby Matt Corallo+112−767 files
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Low 33 AI analysisMessage 90 · Strong
LDK Lightning Dev Kitrust-lightning BitcoinCryptographic librariesLightning Network

Add support for deriving and signing a new static remote key

This commit changes how a Lightning wallet (LDK) derives one of the keys that receives funds when the other party force-closes a channel. Previously, that key depended on per-channel state, so if a user lost all state except their main see…

New key derivation path added for disaster recovery of counterparty-force-closed fundsSpending code updated to support both old and new derivation formatsTODO comment indicates the actually-used key is not yet dynamic
7ff74d5cby Matt Corallo+120−256 files
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Informational 24 AI analysisMessage 90 · Strong
LDK Lightning Dev Kitrust-lightning BitcoinCryptographic librariesLightning Network

Convert `ChannelSigner::pubkeys` to only fetch *new* pubkeys

This commit is a preparatory refactor in LDK's key-handling code. It renames a trait method from `pubkeys` to `new_pubkeys` and changes the default signer so it no longer caches a fixed set of holder public keys. The stated goal is to allo…

API rename from `pubkeys` to `new_pubkeys` with semantic contract changeRemoval of cached `holder_channel_pubkeys` from `InMemorySigner`Documentation now allows `new_pubkeys` to return different keys per call
9d291e01by Matt Corallo+56−899 files
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Low 31 AI analysisMessage 90 · Strong
LDK Lightning Dev Kitrust-lightning BitcoinCryptographic librariesLightning Network

Allow `KeysManager` to opt-into the new `remote_key` derivation

This commit adds an opt-in feature to LDK's key manager that changes how on-chain backup addresses are derived when a channel is force-closed by the other party. The new derivation makes these addresses come from a small, predictable set, …

New key derivation flag added to `KeysManager::new` and `PhantomKeysManager::new`Old `remote_key` derivation depended on `channel_keys_id`, making funds unrecoverable if channel state is lostNew derivation uses a static set of keys, enabling blockchain scanning for disaster recovery
189b8ac4by Matt Corallo+118−5120 files
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Informational 18 AI analysisMessage 85 · Strong
LDK Lightning Dev Kitrust-lightning BitcoinCryptographic librariesLightning Network

Allow funding errors in `full_stack_target` fuzzer

This commit changes a fuzz test (a randomized testing harness) so it no longer crashes when it tries to fund a channel that isn't ready to be funded. The change only affects test code, not the real Lightning node software that users run. I…

Change is confined to fuzz test code (fuzz/src/full_stack.rs)Removal of a panic path in a test harnessNo modification to production channel funding logic
c1fefcfeby Matt Corallo+7−131 file
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Informational 15 AI analysisMessage 95 · Strong
LDK Lightning Dev Kitrust-lightning BitcoinCryptographic librariesLightning Network

Stop reading fee estimates directly in `full_stack_target`

This commit is a fuzz-testing infrastructure change, not a security fix. It changes how a test harness feeds fake fee estimates to the Lightning library during automated fuzzing so that existing test inputs don't become useless every time …

8230ff7fby Matt Corallo+12−771 file
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Informational 15 AI analysisMessage 100 · Strong
LDK Lightning Dev Kitrust-lightning BitcoinCryptographic librariesLightning Network

Stop counting for RNG output in `full_stack_target`

This commit changes only a fuzzing test harness, not production code. It alters how fake random numbers are generated during automated fuzz testing so that test inputs remain useful even when the underlying software changes. There is no se…

dadac03aby Matt Corallo+50−481 file
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